Sex Is Zero 2 is the 2007 sequel to the South Korean comedy film Sex Is Zero, and is the directorial debut of Yoon Tae-yoon. Starring Im Chang-jeong and Song Ji-hyo, the film reunites most of the cast from the original film, though Ha Ji-won only makes a cameo appearance. Sex Is Zero 2 was released in South Korea on 12 December 2007.
Having broken up with his previous girlfriend, law student Eun-sik is keen to consummate a new relationship with Kyeong-ah, a popular swimming champion. Despite help from his friends, Eun-sik begins to doubt himself when Gi-joo, a suave prosecutor, tries to compete for Kyeong-ah's affections. Kyeong-ah has a dark past in which she was raped when she was in high school, this results in her not able to engage as much sexual contact towards Eun-sik, this then makes him very frustrated. In the end Kyeong-ah is about to leave to America with Gi-joo but then realizes that she only loves Eun-sik and nobody else.